I have a project which we have to make a database for a car dealership. We have to make a Salersperson be able to view the inventory, add sales people, add cars/ car details. A customer must be able to view inventory, add cars they would think about purchasing, and then purchase the car or have a salesperson purchase the car. Salesperson must have their sales saved . I feel like my design looks a bit clunky and could be broken down better in a few more tables, but I am just drawing a blank when thinking about how else to break this up. Any suggestions?